This is the new Nikon 50mm with the AF-S motor that works with all Nikon dSLR cameras, including the D40 and D60 series. A 50mm prime lens on an FX camera is often referred to as “neutral” because it sees objects just about as our eyes do. On a DX camera, it is equivalent to a 75mm which makes it a good portrait lens. As with many primes, it is small and lightweight. These features make this lens very versatile indoors and out. It can focus down to 18 inches, it’s about 2 inches long, and it weighs just 10 ounces. This is an AF-S lens which means it has a focusing motor built in. D40 and D60 owners: This is the one you want.